<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Title</title>
  <style>
    .f1{
      /*background-color: red;*/
      /*height: 986px;*/
      /*width: 752px;*/
      overflow: hidden;
    }
    .left{
      width: 611px;
      height: 376px;
      background-color: grey;
      float: left;
    }
    .right{
      width: 375px;
      height: 376px;
      background-color: yellow;
      float: right;
    }
    .f2{
      /*background-color: red;*/
      overflow: hidden;
    }
    .f2>.l1{
      width: 366px;
      height: 233px;
      background-color: pink;
      float: left;

    }
    .l2,.l3,.l4{
      width: 198px;
      height: 233px;
      background-color: blue;
      float: right;
    }
  </style>
</head>
<body>
<div class="f1">
  <div class="left"></div>
  <div class="right"></div>
</div>

<div class="f2">
  <div class="l1"></div>
  <div class="l2"></div>
  <div class="l3"></div>
  <div class="l4"></div>
</div>
</body>
</html>